47 citations · 210 across the 14 of their papers we have counts for
18 papers
Optical superradiance from single-digit-femtosecond electron beam structure
Chad Pennington, Gia Azcoitia, Blae Stacey +5
We report measurements of superradiant optical transition radiation in the 550-800 nm range produced by ultrashort relativistic electron bunches at a dielectric boundary. In the me…
3D atomic structure determination with ultrashort-pulse MeV electron diffraction
Vincent Hennicke, Max Hachmann, Paul Benjamin Klar +22
Understanding structure at the atomic scale is fundamental for the development of materials with improved properties. Compared to other probes providing atomic resolution, electron…
Spectrally shaped THz pulses from tapered dielectric waveguides
Karel Peetermans, Jonah Richards, Max Kellermeier +2
In order to exploit the complete scientific potential of user-oriented accelerator facilities, it is necessary to provide adequate pump sources to enable pump-probe science. The us…
Coupled bunch stability with variable filling patterns in PETRA IV
Sergey Antipov, Chao Li
The PETRA IV upgrade project is aiming at building a 6 GeV diffraction-limited light source. The storage ring`s off-axis accumulation injection scheme will allow generating a wide…
Wakefield assisted bunch compression in storage rings
Sergey A. Antipov, Ilya Agapov, Igor Zagorodnov +1
Equilibrium bunch lengths typical to modern day light sources of tens of picoseconds limit the spectral reach of superradiant approaches for exploring materials and biological samp…
Advanced RF Structures for Wakefield Acceleration and High-Gradient Research
Xueying Lu, Jiahang Shao, John Power +28
Structure wakefield acceleration (SWFA) is one of the most promising AAC schemes in several recent strategic reports, including DOE's 2016 AAC Roadmap, report on the Advanced and N…
Drive beam sources and longitudinal shaping techniques
Francois Lemery, Gerard Andonian, Steffen Doebert +4
Linear colliders are an attractive platform to explore high-precision physics of newly discovered particles. The recent significant progress in advanced accelerator technologies ha…
Commissioning results and electron beam characterization at the S-band photoinjector at SINBAD-ARES
E. Panofski, R. W. Assmann, F. Burkart +12
Over the last years, the generation and acceleration of ultra-short, high quality electron beams has attracted more and more interest in accelerator science. Electron bunches with…
Self-calibration technique for characterization of integrated THz waveguides
Max Kellermeier, Francois Lemery, Klaus Floettmann +2
Emerging high-frequency accelerator technology in the terahertz regime is promising for the development of compact high-brightness accelerators and high resolution-power beam diagn…
A final focus system for injection into a laser plasma accelerator at the ARES linac
Sumera Yamin, Ralph Assmann, Florian Burkart +5
ARES (Accelerator Research Experiment at SINBAD) is a linear accelerator at the SINBAD (Short INnovative Bunches and Accelerators at DESY) facility at DESY. ARES was designed to co…
Longitudinal phase space synthesis with tailored 3D-printable dielectric-lined waveguides
Frank Mayet, Ralph Assmann, Francois Lemery
Longitudinal phase space manipulation is a critical and necessary component for advanced acceleration concepts, radiation sources and improving performances of X-ray free electron…
Superradiant Cherenkov-Wakefield radiation as THz source for FEL facilities
Klaus Floettmann, Francois Lemery, Martin Dohlus +3
An electron beam passing through a tube which is lined on the inside with a dielectric layer will radiate energy in the THz range due to the interaction with the boundary. The reso…
35 megawatt multicycle THz pulses from a homemade periodically poled macrocrystal
Francois Lemery, Thomas Vinatier, Frank Mayet +7
High-power multicycle THz radiation is highly sought after with applications in medicine, imaging, spectroscopy, characterization and manipulation of condensed matter, and could su…
Passive Ballistic Microbunching of Non-Ultrarelativistic Electron Bunches using Electromagnetic Wakefields in Dielectric-Lined Waveguides
Francois Lemery, Philippe Piot, Gayane Amatuni +14
Temporally-modulated electron beams have a wide array of applications ranging from the generation of coherently-enhanced electromagnetic radiation to the resonant excitation of ele…
An Adiabatic Phase-Matching Accelerator
Francois Lemery, Klaus Floettmann, Philippe Piot +2
We present a general concept to accelerate non-relativistic charged particles. Our concept employs an adiabatically-tapered dielectric-lined waveguide which supports accelerating p…
Tailored electron bunches with smooth current profiles for enhanced transformer ratios in beam-driven acceleration
Francois Lemery, Philippe Piot
Collinear high-gradient beam-driven wakefield methods for charged-particle acceleration could be critical to the realization of compact, cost-efficient, accelerat…
Ballistic Bunching of Photo-Injected Electron Bunches with Dielectric-Lined Waveguide
F. Lemery, P. Piot
We describe a simple technique to passively bunch non-ultrarelativistics (~MeV) electron bunches produced in conventional photoinjectors. The scheme employs a dielectr…
Generation and Characterization of Electron Bunches with Ramped Current Profiles in a Dual-Frequency Superconducting Linear Accelerator
P. Piot, C. Behrens, C. Gerth +5
We report on the successful experimental generation of electron bunches with ramped current profiles. The technique relies on impressing nonlinear correlations in the longitudinal…